1 files changed, 25 insertions, 0 deletions
diff --git a/test/helper.rb b/test/helper.rb
new file mode 100644
index 0000000..d628122
--- /dev/null
+++ b/test/helper.rb
@@ -0,0 +1,25 @@
+require "asn1kit"
+require "test/unit"
+require "pp"
+
+class ASN1KitTestCase < Test::Unit::TestCase
+  def B(ary)
+    [ary.join].pack("H*")
+  end
+
+  def assert_raise_with_message(exception, pattern, msg = nil, &block)
+    unless pattern.is_a?(String) or pattern.is_a?(Regexp)
+      raise TypeError, "expected message must be a kind of String or Regexp"
+    end
+
+    msg ||= "Exception %s with message %p is raised" % [exception, pattern]
+    raised = assert_raise(exception, msg) { yield }
+
+    if pattern.is_a?(Regexp)
+      assert_match(pattern, raised.message, msg)
+    else
+      assert_equal(pattern, raised.message, msg)
+    end
+    raised
+  end
+end